Insulating refractory castables are made from lightweight alumina rich cements. Cenospheres are the ideal ingredient in these castable cements. Kulin Corporation supplies Cenospheres for these applications.

Refractory bricks are built primarily to withstand high temperatures. Low thermal conductivity is essential for greater thermal efficiency. The introduction of Cenospheres will reduce weight whilst maintaining the integrity of the brick. Kulin Corporation supplies Cenospheres for these applications